Eaton NZM2/3-XUHIV24DC Undervoltage Release 24V DC

The Eaton NZM2/3-XUHIV24DC is a specialized undervoltage release designed for seamless integration with Eaton NZM2 and NZM3 series circuit breakers. Operating at a nominal voltage of 24V DC, this accessory serves as a critical safety mechanism within industrial power distribution systems. By continuously monitoring the control voltage, it ensures that the circuit breaker automatically trips if the voltage falls below a predefined threshold, thereby preventing potential damage to connected equipment and ensuring a controlled shutdown during power instability.

Advantages

This undervoltage release offers high reliability and precision in monitoring electrical circuits. Its primary advantage lies in its ability to provide automated protection against voltage drops, which is essential for maintaining the integrity of sensitive industrial machinery. The unit is engineered for easy installation within the circuit breaker housing, ensuring that it does not occupy unnecessary space while providing robust performance. By integrating this component, facility managers can enhance the safety profile of their electrical infrastructure and minimize the risk of operational failures caused by inconsistent power supply.

Suitable for

• Industrial power distribution systems
• Protection of sensitive electrical machinery
• Emergency shutdown circuits
• Automated control panels requiring voltage monitoring

When it may not be suitable

This device is specifically designed for use with Eaton NZM2 and NZM3 circuit breakers and is not compatible with other series or brands. It is intended for 24V DC control circuits and will not function correctly in AC applications or systems operating at different voltage levels.

Key specifications

• Operating voltage: 24V DC
• Compatibility: Eaton NZM2 and NZM3 circuit breakers
• Function: Undervoltage release with integrated auxiliary contacts
• Application: Industrial circuit protection

How to use

Installation should be performed by a qualified electrician in accordance with local safety regulations. The unit is designed to be mounted directly into the designated accessory compartment of the compatible NZM2 or NZM3 circuit breaker. Once inserted and secured, the electrical connections for the 24V DC control signal must be wired according to the provided technical documentation. After installation, it is recommended to perform a functional test to ensure the breaker trips correctly when the control voltage is interrupted.

What to consider before purchase

• Verify that your circuit breaker model is either NZM2 or NZM3
• Ensure your control system provides a stable 24V DC supply
• Check the available space within your electrical cabinet for accessory installation
• Confirm that the installation environment meets the manufacturer's temperature and humidity requirements

Usage recommendations

Regularly inspect the electrical connections to ensure they remain tight and free from corrosion. Periodically test the undervoltage release function during scheduled maintenance intervals to guarantee continued operational safety and reliability.